How to Talk to a Science Denier

July 1, 2021
Irrational beliefs have reached epidemic proportions, writes philosopher and science historian McIntyre in this earnest effort to explain them. The author hits the ground running with an account of the 2018 Flat Earth International Conference, whose attendees believe that the Earth is a disk surrounded by a wall of ice (Antarctica) under a transparent dome, that all space travel is faked, and that the truth is suppressed by a worldwide conspiracy of "experts." The leaders in the flat Earth movement seem sincere, and the members are thrilled to belong to an elite that has discovered a truth denied to the hapless mainstream. "Science denial is not based on lack of evidence," writes McIntyre. "Which means that it cannot be remedied just by providing more facts. Those who wish to change the minds of science deniers have to stop treating them as if they were just misinformed." Furthermore, insults rarely work. Readers may be frustrated that the author shows as much interest in understanding how believers think as in disproving errors, but he provides ingenious insights throughout. Among those most familiar to psychologists are five factors involved in organized science denial: "cherry-picking evidence, belief in conspiracy theories, reliance on fake experts (and the denigration of real experts), logical errors, and setting impossible expectations for what science can achieve." McIntyre shows how deniers ignored or denied the existence of climate change because it's something that may happen in the future. Then came Covid-19, which was ubiquitous--and they denied that, too. Especially in the U.S., science denial has become politicized, with a distinct rightward tilt. "To some extent," writes the author, "conservative denial of climate change and evolution may be explained by the fact that this is just what conservatives are expected to believe." Lest liberals get too comfortable, McIntyre casts a gimlet eye on the fierce opposition to foods containing genetically modified organisms. "There have been no credible studies that have shown any risk in consuming them." A well-argued yet discouraging exercise in the application of reason to unreason.

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